Nikolai, who appears to be part-cyborg; Galory, a young boy seemingly part human and part Crest person; and Althea, entirely Crest, find themselves in a world still scarred by 300 years of war between Earth and the Crest people. While aboard a ship, they are ambushed and nearly wiped out by automated attack ships from a massive Crest vessel controlled by an automaton. Galory, Nikolai, and Althea venture onto the ship to search for any survivors from an advanced scouting party and to attempt to destroy the Type 38 automaton at the ship's core.